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Duane Sharrock

Medical devices powered by the ear itself - MIT News Office - 0 views

  • Health Sciences and Technology (HST) demonstrate for the first time that this battery could power implantable electronic devices without impairing hearing.
  • The devices could monitor biological activity in the ears of people with hearing or balance impairments, or responses to therapies. Eventually, they might even deliver therapies themselves
  • “In the past, people have thought that the space where the high potential is located is inaccessible for implantable devices, because potentially it’s very dangerous if you encroach on it,” Stankovic says. “We have known for 60 years that this battery exists and that it’s really important for normal hearing, but nobody has attempted to use this battery to power useful electronics.”
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  • The ear converts a mechanical force — the vibration of the eardrum — into an electrochemical signal that can be processed by the brain; the biological battery is the source of that signal’s current. Located in the part of the ear called the cochlea, the battery chamber is divided by a membrane, some of whose cells are specialized to pump ions. An imbalance of potassium and sodium ions on opposite sides of the membrane, together with the particular arrangement of the pumps, creates an electrical voltage.
  • Low-power chips, however, are precisely the area of expertise of Anantha Chandrakasan’s group at MTL
  • The frequency of the signal was thus itself an indication of the electrochemical properties of the inner ear.
  • in cochlear implants, diagnostics and implantable hearing aids. “The fact that you can generate the power for a low voltage from the cochlea itself raises the possibility of using that as a power source to drive a cochlear implant,” Megerian says. “Imagine if we were able to measure that voltage in various disease states. There would potentially be a diagnostic algorithm for aberrations in that electrical output.”
  • “I’m not ready to say that the present iteration of this technology is ready,” Megerian cautions. But he adds that, “If we could tap into the natural power source of the cochlea, it could potentially be a driver behind the amplification technology of the future.”
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    "For the first time, researchers power an implantable electronic device using an electrical potential - a natural battery - deep in the inner ear."
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    "All of D-Lab's classes assess the needs of people in less-privileged communities around the world, examining innovations in technology, education or communications that might address those needs. The classes then seek ways to spread word of these solutions - and in some cases, to spur the creation of organizations to help disseminate them. Specific projects have focused on improved wheelchairs and prosthetics; water and sanitation systems; and recycling waste to produce useful products, including charcoal fuel made from agricultural waste."
carolsmith1610

How to Disable Power Button on Android Devices Using Scalefusion - 0 views

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    Know how to disable power button on Android devices using Scalefusion Android MDM Solution.
Duane Sharrock

As Hurricanes Approach, the Robotic Storm Chasers of the Future Are Ready | Popular Sci... - 0 views

  • Authorities like NOAA gather storm data from a few different sources--from aircraft circling the weather system from tens of thousands of feet, from stationary weather buoys scattered throughout the Gulf of Mexico, from Earth-orbiting satellites--giving scientists a great view of the area around the storm.
  • “Currently there are only two or three ways to get this kind of data,” Dr. Alan Leonardi, deputy director of NOAA’s Atlantic Oceanographic and Meteorological Laboratory, says. “First, you can have a storm serendipitously traverse over a buoy that happens to already be in the water, and that doesn’t happen as frequently as some might believe. Another would be to position a ship out there to collect this data, but that creates a dangerous situation for any crew that might be aboard the ship, so we’re not going to do that. The third--and we have done this--is to deploy instruments from aircraft in front of a storm that can collect data as the storm passes. We then go back in a ship and pick up those buoys--if they survive and don’t end up sinking.”
  • NOAA’s two robotic platforms are being developed independently of one another, yet their roles dovetail neatly. The Liquid Robotics Wave Glider platform is designed as a kind of storm monitoring sentry--like a weather buoy, but one that researchers can move at will. Wave Gliders harvest their propulsive energy from ocean waves themselves and power their onboard electronics with solar energy. This means they are not very fast--too slow to actually chase a storm in most cases--but they can remain at sea for months on end, waiting and watching.
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  • the agency already has one Wave Glider in the water north of Puerto Rico as a test-bed for the dozens NOAA hopes will follow. Isaac tracked south of Puerto Rico and missed the prototype, but the robot did manage to capture data from some intense weather along the outer bands of the system--the first of what NOAA hopes will be a new wealth of hurricane data produced by its robotic fleet.
  • the eyewall--the ring of powerful thunderheads that encircle the eye of the storm.
  • With an operational life of ten days, EMILY can be dropped into the water ahead of a storm, navigate its way into the very center, and remain there, tracking the storm as it moves while streaming data all along the way.
  • Better hurricane prediction translates directly to lowered economic losses, better mitigation of property damage, and--as it goes without saying on the eve of Katrina’s anniversary--lives saved.
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    As the 2012 hurricane season reaches full tilt, researchers at NOAA are hard at work hacking two different maritime robots that the agency hopes will become critical storm forecasting tools of the future. The first, Liquid Robotics' Wave Glider, is envisioned as a persistent surveillance platform, an army of mobile monitoring stations that will remain at sea for the duration of a hurricane season, waiting to swarm into the path of a developing storm. The second--Hydronalix's Emergency Integrated Life Saving Lanyard, or EMILY (a 2010 PopSci Best of What's New award winner)--will be capable of tracking the storm itself for days at a time, streaming continuous data directly from the center of the storm to researchers ashore.
thinkahol *

'Wireless' humans could form backbone of new mobile networks | KurzweilAI - 0 views

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    Members of the public could form the backbone of powerful new mobile Internet networks by carrying wearable sensors, according to researchers from Queen's University Belfast.
thinkahol *

The Healing Power of Light - Technology Review - 0 views

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    A polymer that mends itself could lead to medical implants or engine parts that fix themselves.
thinkahol *

Hybrid solar system makes rooftop hydrogen | KurzweilAI - 0 views

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    Duke University engineer Nico Hotz has proposed a hybrid solar system in which sunlight heats a combination of water and methanol in a maze of tubes on a rooftop to produce hydrogen. The device is a series of copper tubes coated with a thin layer of aluminum and aluminum oxide and partly filled with catalytic nanoparticles. A combination of water and methanol flows through the tubes, which are sealed in a vacuum. Once the evaporated liquid achieves higher temperatures, tiny amounts of a catalyst are added, which produces hydrogen. This combination of high temperature and added catalysts produces hydrogen very efficiently, Hotz said. The resulting hydrogen can then be immediately directed to a fuel cell to provide electricity to a building during the day, or compressed and stored in a tank to provide power later. After two catalytic reactions, the system produced hydrogen much more efficiently than current technology without significant impurities, Hotz said. The resulting hydrogen can be stored and used on demand in fuel cells. "This set-up allows up to 95 percent of the sunlight to be absorbed with very little being lost as heat to the surroundings," he said. "This is crucial because it permits us to achieve temperatures of well over 200 degrees Celsius within the tubes. By comparison, a standard solar collector can only heat water between 60 and 70 degrees Celsius." Holtz performed a cost analysis, comparing a standard photovoltaic cell, a photocatalytic system, and the hybrid solar-methanol system.  He found that the hybrid system is the least expensive solution, with a total installation cost of $7,900 if designed to fulfill the requirements in summer. The paper describing the results of Hotz's analysis was named the top paper during the ASME Energy Sustainability Fuel Cell 2011 conference in Washington, D.C. Topics: Energy | Nanotech/Materials Science
thinkahol *

Justin Hall-Tipping: Freeing energy from the grid | Video on TED.com - 0 views

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    What would happen if we could generate power from our windowpanes? In this moving talk, entrepreneur Justin Hall-Tipping shows the materials that could make that possible, and how questioning our notion of 'normal' can lead to extraordinary breakthroughs.
anonymous

Automotive Fuel Injection Systems Market 2023 | TechSci Research - 0 views

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    Automotive Fuel Injection Systems Market is projected to raise by 2023, growing at a CAGR of over 6% owing to increasing vehicle production, growing demand for better fuel efficiency & power output, and stringent exhaust emissions.
anonymous

Luxury Car Market Global Size & Forecast 2024 - 0 views

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    Luxury car is a status symbol as it possess high horse power, enhanced security and includes airbag, etc due to which Luxury Car market is projected to grow at double-digit CAGR during the forecast period.
anonymous

Fuel Cell Market Size, Share, & Forecast 2023 | TechSci Research - 0 views

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    Global fuel cell market is forecast to grow at a CAGR of over 18% by 2023, due to rising demand for fuel cell powered vehicles, including forklift, trains, etc. http://bit.ly/2ZUc0Yb
carolsmith1610

Which are the best Android kiosk software for mobile device management and data synchro... - 0 views

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    A powerful Android MDM Solution comprises an important feature known as Android Kiosk Mode. Know more about how the feature helps and helps businesses manage and secure corporate-owned Android devices.
carolsmith1610

How do I remote control my Android device? - 0 views

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    Android devices can be controlled remotely through a powerful Android MDM Software. Know how an Android MDM like Scalefusion benefits businesses to powerfully manage and secure work deployed Android devices.
carolsmith1610

How to track a lost device? - 0 views

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    Know how an Android MDM Solution can track, locate and secure a lost device remotely with its powerful features.
carolsmith1610

What are the best tech tools that can increase productivity? - 0 views

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    Mobile Device Management Solutions are one of the most innovative, simple to use and yet powerful tools that drastically improves business productivity. Know the features and learn how MDM Solutions are the best productivity tools around.
carolsmith1610

How IT Admins Can Leverage a Team Communication App to Simplify Their Work - 0 views

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    Know how IT admins can leverage secure, powerful and simplified cloud-based team communication app to simplify their work.
carolsmith1610

Is there any way to track an Android device without Internet via GPS? - 0 views

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    Can Android devices be tracked and located without internet? Yes, with a powerful Android Mobile Device Management Solution, Android devices can be tracked, located and secured. Read this to know how.
Duane Sharrock

Resources Are Not Something We Consume Like Sweets - 0 views

  • Resources are fixed and finite, surely? Wrong!
  • key developments in technology created new resources.
  • resources like computing power, medicines and knowledge are becoming more and more abundant.
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  • The reason why the total forested area in Europe and North America is increasing year by year is because we no longer need to burn the trees.
  • We can create resources as well as consume them.
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    The author makes some important observations that are astoundingly political and may be uncover the core to today's religious interests in science and technology. Major points of interest, when referring to the human eras of social/scientific/technological development: "At each stage, a new resource became available. Something that was previously unknown, unavailable or unusable suddenly became a valuable commodity. In other words, key developments in technology created new resources. The quantity of available resources has continued to expand throughout human history."
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    The author makes some important observations that are astoundingly political and may be uncover the core to today's religious interests in science and technology. Major points of interest, when referring to the human eras of social/scientific/technological development: "At each stage, a new resource became available. Something that was previously unknown, unavailable or unusable suddenly became a valuable commodity. In other words, key developments in technology created new resources. The quantity of available resources has continued to expand throughout human history."
Brian Robert Higgins

Easy to Use Web Conferencing - GlobalMeet by PGi - 0 views

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    PGi created GlobalMeet for an easier web conferencing solution. It is user friendly and ideal for collaborating on documents, recording meetings, sharing presentations, and hosting conference calls with large groups online. GlobalMeet also allows users to view webcam videos, share applications, record presentations for later playback, and utilize features, such as online chat, live Q&A and attendee polling. Experience this simple and easier web conferencing today.
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